Block Diagram -Display Section - Sony CDX-4270R Service Manual

CDX-4270R
4-4. BLOCK DIAGRAM — DISPLAY SECTION —
BU5V
BATT
BATT
+5V REG
CD5V
Q909
04
SYSTEM CONTROL
RESET
RESET
2 1 90
IC902
S900
RESET
D910
BACK-UP
CHECK
Q906
D807
BACK-UP
76 BU IN
CHECK
Q917,918
D909
ACC
ACC CHECK 101 ACC IN
Q905
D940
BATT
BATT CHECK
Q940
95 COM8V ON
POWER
+8V REG
+8V CONTROL BATT
Q904
Q913,919
35 CD ON
MD ON
32
CD POWER CD POWER
+8V REG
BATT
CONTROL CONTROL
Q912
Q907,908 Q910,911
MD 8V
111 ANT REM
109 PW ON
1
AMP ON
ANT POWER
ANT+B AMP+B
CONTROL 2
Q924,925
VCC 4 BATT
AMP+B
BU5V 5 BU+B
POWER SUPPLY
IC901
LCD DRIVE
IC801 (3/3) IC501
SO DATA
13 64
LCD CKO 14 63 CLK LCD
CE 104 62 CE
DIM ON 1
LCD POWER
+10V REG
BATT
CONTROL
Q903
Q901,902
ILL ON 108
D-BASS
KEY IN0 46
S501
ROTARY
RE IN0 106
ENCODER
RE IN1 107
RE501
KEY IN1 47 KEY MATRIX
LSW511-529
KEY IN2 48
S502
D919
KEY ACTIVE
NIL 79
Q914,915
D918
NIL 37
IN1 61
CNP802
RC
(REMOTE IN)
IN0 49
24 24
LCD501
DIMMER
CONTROL
Q502,505
PL501,502
LED501-505,
LSW511-529